Suppress "variable may be used uninitialized" warning.

Buildfarm member caiman is showing this, which surprises me because
it's very late-model gcc (14.0.1) and ought to be smart enough to
know that elog(ERROR) doesn't return.  But we're likely to see the
same from stupider compilers too, so add a dummy initialization in
our usual style.

diff --git a/src/backend/parser/parse_expr.c b/src/backend/parser/parse_expr.c
index 2f87255c47008270c01852a71c687032ca34f435..56a531de8db59471127ecbc7efce2b302466d45c 100644 (file)
--- a/src/backend/parser/parse_expr.c
+++ b/src/backend/parser/parse_expr.c
@@ -4276,6 +4276,7 @@ transformJsonFuncExpr(ParseState *pstate, JsonFuncExpr *func)
            break;
        default:
            elog(ERROR, "invalid JsonFuncExpr op %d", (int) func->op);
+           default_format = JS_FORMAT_DEFAULT; /* keep compiler quiet */
            break;
    }